This event was alleged to have occurred on or about (b)(6) 2017.At that time, a third party service provider performed a checkout of the system with no faults found and no parts replaced.The device logs were not preserved thus not available for analysis.The unit was placed back into service after checkout.Ge healthcare (gehc) was notified of this event via pending litigation on 28-feb-2019.Gehc product engineering performed an investigation of this event.Due to the pending litigation, information from the user is not available.A search of the complaint database was conducted for complaints from 1-jan-2017 through 31-dec-2017 documenting other issues for avance serial number (b)(4).One previous complaint (gehc complaint number (b)(4)) was the only complaint found.(b)(4) was for the avance failing checkout before patient use due to a leak in an unidentified tec 7 vaporizer; there was no patient impact since the vaporizer leak was found during checkout.(b)(4) was reported to have occurred on 03-apr-2017 near the 30-mar-2017 timeframe, but the complaint does not indicate if the vaporizer leak prevented anesthetic agent delivery.Since vaporizers are moved from anesthesia machine to anesthesia machine, this investigation cannot correlate the (b)(6) 2017 patient issue to the (b)(6) 2017 (b)(4) complaint.Furthermore, this investigation cannot assume an unquantified leak from an unidentified vaporizer is the root cause for no anesthetic agent delivery.Therefore, the root cause is undetermined.
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